* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

button {
  -webkit-appearance: none;
  appearance: none;
  border: none;
  outline: none;
  background: none;
}

html,
body,
#root {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: #000;
}


.ui {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
}

.explode-button {
  position: absolute;
  bottom: 40px;
  left: calc(50% - 80px);
  width: 160px;
  height: 40px;
  border-radius: 8px;
  border: 2px solid #fff;
  color: #fff;
  cursor: pointer;
  opacity: 0.8;

  transition: opacity .15s;
  pointer-events: auto;
}

.explode-button:hover {
  opacity: 1;
}